Grounding the CDI

[pscook]

I am assembling my XC300 and have a quick question with the harness. I am using this diagram, and don't remember and can't find the chassis wire that connect to the black/white wire from the CDI. The diagram says it goes to earth and continues to the lighting circuit. As I can't find anything in the chassis harness, I am simply putting the black/white wire to a solid earth connection. My loom is very simple (as am I, apparently), but there is nothing that I remember that connected to this one single wire. Am I safe going directly to chassis ground, or is there something I need to know before I fire it off tomorrow?

 

[gasgasman]

It the wire has a loop terminal end on it, then it's a ground.

What year bike is it?

 

[pscook]

It's a 2002, and the connection off the CDI is a spade (male). Nothing on the harness that I remember or can find now that it connects with. I'm pretty good with keeping stuff organized, but I just can't remember where this connection went. The diagram shows a frame earth ground, so that's what I am going with unless someone can show the proper method. I'll poke around the bike when I get home tonight and see if anything else jumps out.

 

[Bryan]

could it be the wire that connects to the voltage regulator up in the neck of the frame where it bolts to the ground?

 

[GMP]

The legend is correct in stating that is a B/W wire with a .250" spade terminal. It should connect to ground at the coil somewhere, along with the common for the coil and regulator. If I remember it may be a short female pigtail off the coil, then everything is pinched under the coil mount. Clean and dielectric grease this. Its definitely a ground so no harm in making a different physical connection.

 

[pscook]

I'll look again for a spare ground from the coil, sounds familiar. I created a unique and discrete ground for the coil that is independent of the loom, maybe I should rethink that. Thanks for the help.

 

[pscook]

Found it! Yellow with green trace was in the loom and grounded to the coil. Why didn't I recognize that the Y/G was attached to the B/W? Silly me. But now looking at the diagram I linked to, the Y/G is the ground for the tail lights. Methinks there be some shenanigans afoot.

Thanks for the help everyone. I'll fire it off tomorrow as I have to take the little one to her dentist appointment this afternoon.